@SuperDicq Japanese restaurants don't seem to really serve much healthy food - it's deep friend stuff, corn syrup filled, white rice etc (although do also serve seaweed, vegetables and fish) - although they tend not to serve enough food to make you obese (when I went to Japan, I had a hard time finding dishes at restaurants that were large enough to sustain my GNU/Form).

It appears that they do need to be cheaper than the other slop that is available to compete.